Officers asked a passenger for identification and when he said he didn’t have any, they checked his baggage and found six .38-caliber rounds and four 9mm rounds, according to CBP spokeswoman Jackie Wasiluk.

Gilberto Valdovinos Medina, Jr., 22, was arrested after officers identified him through fingerprints and found an active warrant set with $1 million bail issued by the Grant County Sheriff’s Office in Washington. Medina, who also goes by the aliases “Diablo” and “Pedro,” is suspected in a deadly drive-by shooting in April in Moses Lake, Wash.

Medina was booked into San Diego County jail pending extradition to Washington, Wasiluk said.